Coal and Siltstone Definition

Definition of Coal and Siltstone

The general Coal and Siltstone definition can be stated as: Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds. On the other hand, Siltstone can be defined as a fine-grained sedimentary rock which mainly consists of consolidated silt. Along with definition of Coal and Siltstone, get to know about Properties of Coal and Siltstone. Get to know more information about Coal and Siltstone origin and discoverer, etymology and class.

History of Coal and Siltstone

The history of Coal and Siltstone gives information about where the rock was found and who was its discoverer. Almost each and every aspect of Earth's history is recorded in rocks be it the volcanoes which were erupted or the plants, animals and organisms which are now extinct, as rocks are present from millions of years.

Coal and Siltstone Origin and Discoverer

Coal and Siltstone definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Coal and Siltstone. In this section, you will know about Coal and Siltstone Origin and Discoverer. Origin of Coal is USA whereas Origin of Siltstone is Unknown. It is interesting to know the name of Coal and Siltstone discoverer. The Discoverer of Coal is John Peter Salley and the discoverer of Siltstone is Unknown.

Etymology of Coal and Siltstone

Along with Coal and Siltstone definition, know more about the etymology of Coal and Siltstone. Etymology of Coal and Siltstone gives information about origin and formation of a particular rock. Know more about Formation of Coal and Formation of Siltstone. The etymology of Coal is From the Old English term col, which has meant mineral of fossilized carbon since the 13th century while that of Siltstone is From the Old English term col, which has meant mineral of fossilized carbon since the 13th century. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Coal and Siltstone belong to Sedimentary Rocks. The sub-class, group and other categories of Coal and Siltstone are listed below.

For Coal,

• Sub-class: Durable Rock and Soft Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock

For Siltstone,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock